The Heart Rhythm Society (HRS) is currently the leading resource on cardiac pacing and electrophysiology. HRS was developed in 1979 by four electrophysiologists, Doctors J. Warren Harthorne, Victor Parsonnet, Seymour Furman, and Dryden Morse, who had a vision of ending death and suffering due to heart rhythm disorders. HRS also serves as a primary resource in science, education and advocacy for cardiac arrhythmia professionals and patients. For over 30 years, HRS has provided resources in areas including atrial fibrillation, sudden cardiac arrest, and heart failure. The Society, an international organization housing more than 5,900 members from more than 70 countries, maintains its mission to improve the care of patients by promoting research, education, and optimal health care policies and standards. Today, HRS is still dedicated to improving the care of patients by advancing resources within the cardiac pacing and electrophysiology.